Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
  • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
  • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
  • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces

Definitions

• the invention relates to a novel auxiliary drive for a speed limiter according to the preamble of claim 1 and a lift equipped therewith and the use initially mentioned only in the description.
• Speed limiters for lifts have the function to prevent the elevator car from driving in an inadmissible state
• the cable ring is guided in the region of the shaft base and in the region of the shaft head in each case via a deflection roller.
• a strand of the rope ring is connected to the car, more precisely with the trigger for the elevator brake.
• One of the deflection rollers is typically designed as a speed-dependent locking member. In normal driving is a strand of the rope loop of
• Speed limiter has been proposed, which serve to generate the force that is required for the triggering of the elevator brake, another type of auxiliary drive.
• Patent application is under the number EP 2 837 592
• auxiliary drive provided a carriage which is connected to the release lever of the elevator brake via a pull rod.
• the carriage is equipped with two swiveling friction lining carriers.
• Each of the two friction lining carrier is pivotally mounted at its one lower end. He is just above its bearing point by a spring in the direction of
• Brake pad carrier engages a lever which is connected to a disc which in normal operation of a
• Electromagnet attracted attracted said lever holds the brake pad carrier against the force of the respective spring in its released position.
• the electromagnet is de-energized for the purpose of triggering the elevator brake, it releases the said disc.
• the spring is able to press the friction lining carrier against the brake bar, so that the friction lining between the brake bar and the
• Frictional forces set the carriage in motion and cause relative movement of the carriage relative to the carriage
• This auxiliary drive is quite expensive and prone to error prone. In particular, it requires a special
• the self-adjusting friction conditions depend not only on the contact conditions between the friction lining and the brake bar, but also on the contact conditions between the friction lining and the Reibbelag uman.
• an auxiliary drive 1 for actuating a preferably completely separate and then spatially ⁇ physically separate elevator brake for controlling the movement of an elevator car is proposed.
• the said sense means "completely separate” as a rule, that the auxiliary drive 1 with the elevator brake only one or more
• Under an elevator brake is preferably a
• Car catching and braking device understood, but possibly also only a safety gear or only a braking device.
• the auxiliary drive 1 has at least one rubbing body which can be rubbed against a brake strip and a swivel body on which the friction body is held so as to be able to be displaced relative thereto and together with the latter about a main axis lying outside the friction body.
• a rubbing body which can be rubbed against a brake strip and a swivel body on which the friction body is held so as to be able to be displaced relative thereto and together with the latter about a main axis lying outside the friction body.
• Circular path pretends that the friction body runs along when it pivots together with the swivel body, which is located in the
• the friction body comes to lie in its tripping end position so that the said line is in its center, at least substantially or ⁇ 25% of the extension of the friction body in the direction of travel of the car.
• auxiliary drive 1 has an existing one or more individual springs spring element and at least one electromagnet and a
• Transmission member for transmitting a pivoting movement of the pivoting body or the friction body on an elevator brake.
• the auxiliary drive 1 is designed so that the friction body under relaxation or compression of a spring element from its standby position on
• Swivel body can be brought into its response position on the swivel body and vice versa.
• the at least one electromagnet is arranged and dimensioned such that it in its first switching state, the friction body in his
• Friction body under the influence of the action of the spring element of the at least one electromagnet away in his Standby position on the swivel body moves and
• the auxiliary drive is characterized in that the friction body, the swivel body, the main axis and - at the intended installation of the auxiliary drive, which is specified by its flanges, mounting holes, etc. - the brake bar are arranged relative to each other so that the friction body the swivel body under the influence of him at the
• Frictional forces occurring on the brake strip as intended are pivoted closer to the brake strip in such a way around the main axis that the friction body of the
• the electromagnet can then attract over a greatly reduced air gap and, as a result, very efficiently pull the friction body into its ready position without the electromagnet being significantly stronger
• Auxiliary drive as a swivel body has a pivot rod or the swivel body comprises a pivot rod which is pivotally supported in the region of its one end to the main bearing and carries the friction body at its other end.
• a pivot rod is a particularly simple means for imparting a circular path with a variable radius to the swivel body, on which it moves into the area of the ever smaller shortest distance between the main axis and the brake bar.
• the friction body is articulated pivotably relative to the pivot rod. In this way, he can always align by itself always exactly so that it rests with its contact surface without jamming on the brake bar.
• the pivot rod is telescopic either with or against the force of a spring element. It is even more preferable to design the pivot rod and the main shaft such that the pivot rod is displaceable with respect to the main bearing with and against the force of a spring element, thereby changing the length of the pivot rod which lies between the main bearing and the friction body.
• a pivotable about the main bearing axis HLA bearing sleeve includes, which surrounds the pivot rod - ideally closed around its entire circumference - and holds in the direction of the pivot rod longitudinal axis SSL displaceable.
• the pivot rod can be guided very precisely by simple means. Your - preferably - on the shortest path between the main bearing and the friction lining effective length can be easily adjusted by the
• the pivot rod has a circular cross-section, at least in the effective range of the bearing sleeve and possibly also of the spring element - even if (less
• Rod section and a - possibly integrally - subsequent second, less slender rod section has.
• the first rod section passes through
• At least one spring element ideally one or more coil springs or one or more disc springs.
• Electromagnet so on the swivel rod - is attached directly or indirectly or to a fixed to her holder - that he can swing back and forth with her. Such an attachment ensures that the electromagnet - regardless of the current Verschwenkungsschreib the
• a particularly favorable embodiment, for which protection is claimed in the sense of a subclaim as well as independently, in the sense of a sibling claim, is characterized in that the electromagnet which is used for in
• the solenoid which remains largely used, can apply a higher holding force, which facilitates the automatic restarting of the car after it has been caught, by offering greater security against the unintentional release of the pivoting lever from the "handle" of the electromagnet of the
• the at least one rocker lever by means of its bearing eye or bearing is pivotally hinged to a pull rod, which in turn pivotally mounted on the main axis
• the longitudinal axis of the rocker arm with the longitudinal axis of the pivot rod forms an angle of not more than 25 °, better at most 15 °, which ensures that the pivot point of the rocker arm is not positioned next to, but above or below the pivot rod.
• Swing body and preferably or usually comprises at least two frame members which are pivotally mounted about the main axis. You are doing so with the swivel bar
• Frame elements accommodate the pivot rod between them.
• the frame elements make it superfluous, directly on the
• the two frame elements are preferably connected to each other by a coupling element in the form of a rod
• Main axis extends and preferably a slot of the
• auxiliary drive is designed in such a way that, when the auxiliary drive is mounted as intended on the elevator or its car, its friction body comes to rest against the surface of a guide rail which is the abutment
• the two frame elements accommodate a functioning as a brake bar guide rail wholly or partially between them, preferably with their sections that protrude in the direction of the pivot rod longitudinal axis via the pivot rod located between them.
• Design makes it much easier to frictionally cooperate with the friction surface of the guide rail, which connects the two contact surfaces of the guide rail to which the guide rollers, brake wedges, etc., and is oriented substantially perpendicular to these - wherein the actuating forces nonetheless on the shortest route and without ineffective "diagonal pull" on the both sides of the abutment surfaces of the guide rail to the plant upcoming brake wedges or brake rollers can be passed.
• Swivel bar and its main axis better two pivot rods and their main axes are mounted on a relative to the car and / or car frame preferably movable on at least two rails slide.
• Swinging rods on the carriage then ensures that all brake wedges or brake rollers of an elevator brake are always acted upon by the same actuating force and that this is the case when a plurality of elevator brakes are actuated by the one auxiliary drive.
• the carriage carries a bearing bracket for each major axis such that one end of the major axis is secured to the carriage and the other end of the major axis is secured to the carriage
• Bearing bracket is attached. This is a simple way a stable attachment of a precise leadership main or even alone responsible main axis possible.
• the carriage carries for each pivot rod a stop bracket, which preferably forms a window together with the carriage through which the respective pivot rod
• the stop bracket forms a stop
• Swivel arm limited so that the swing arm after reaching the stop moves the carriage in motion.
• Protection is also sought for an elevator having an elevator drive, a car run on rails, an elevator brake and a speed limiter operating therewith, and electronic driving condition monitoring for activating a speed limiter.
• the claimed elevator is characterized in that an auxiliary drive according to one of the preceding claims together with the electronic driving condition monitoring forms the speed limiter.
• FIG. 1 shows a first exemplary embodiment of the invention
• FIG. 1A shows the exemplary embodiment according to FIG. 1 cut away so that the pivoting rod is clearly visible.
• FIG. 2 shows the exemplary embodiment according to FIG. 1 in a three-dimensional view obliquely from front to top.
• FIG. 3 shows the exemplary embodiment according to FIG. 1 immediately after activation.
• FIG. 3A schematically shows how the friction body of the
• Embodiment according to Figure 3 rests on a guide rail for the car or the counterweight.
• FIG. 4 shows the embodiment according to FIG. 1 at the end of the activation of the elevator brake by the auxiliary drive.
• FIG. 5 shows the exemplary embodiment according to FIG. 4 in a three-dimensional view obliquely from front to top.
• FIG. 6 shows the embodiment according to FIG. 1 from above.
• FIG. 7 shows a second embodiment, seen from the side, in the ready position.
• FIG. 8 shows the embodiment according to FIG. 7 viewed from the side immediately after its activation.
• FIG. 9 shows the exemplary embodiment according to FIG. 7 in the course of triggering, at the moment in which the pivoting lever reaches the upper stop.
• FIG. 12 shows a detail enlargement from FIG. 7.
• FIG. 13 shows the second embodiment vertically from above.
• FIG. 14 shows a simplified (not preferred) embodiment in the middle longitudinal section.
• FIG. 15 shows a partial section of FIG. 14
• FIG. 1 shows a first exemplary embodiment of the invention
• the auxiliary drive 1 is for the construction of a novel
• Speed limiter used which is used in an elevator. It is a so-called Aufuzugs Anlagennskyer. This one is designed that it is ready for attachment to a car and / or to a counterweight of an elevator.
• the auxiliary drive 1 brings in case of need - for example, when an impermissible driving condition of the car is detected, which must be supplied to a master - a preferably executed entirely separately from him embarkzugsbrems- or
• Lift-catching device for responding which decelerates or completely stops the car, d. H. catches.
• the required actuation energy refers to the
• auxiliary drive 1 This converts the at least one friction body of the auxiliary drive 1 due to its contact with the brake bar partially in a frictional force, which is used as actuation or tripping force for the elevator brake or elevator catching device.
• the auxiliary drive 1 is designed as such, however, that it only a fraction of the braking power required for braking or catching an elevator car
• the auxiliary drive 1 according to the invention has a main axis 2, which is preferably mounted on the car fixed to the car, as can be seen with reference to FIG. 5.
• Figure 5 shows the preferred, because very space-saving and in the case of
• axle which defines the main axis 2
• Fig. 2 axle which defines the main axis 2
• Fig. 2 axle is anchored on its one side to the one cross-beam Q and its other side to the other cross-beam as soon as it is fully assembled.
• the auxiliary drive 1 also comprises two pivotally mounted about the main axis 2 on or on this mounted frame members 3.
• each of these frame members 3 is designed as a plate or metal plate. It is therefore a component which has two main surfaces H and, moreover, only minor surfaces N.
• each of the two is preferably
• the plates forming the frame elements 3 can be
• the two frame members 3 are completely or at least substantially aligned parallel to each other. you take between them an even closer to be explained swing rod 4.
• the frame elements 3 can serve to support the pivoting bar 4, which will be explained in greater detail below, between them.
• Actuating force communicated At least one, better both
• Frame elements 3 give the actuating force in turn to at least one brake and / or safety gear of the elevator.
• Frame elements 3 give the actuating force in turn to at least one brake and / or safety gear of the elevator.
• Actuators 22 and 23 are provided, which will be explained later in more detail.
• the swivel bar 4 is also pivotably mounted on the main axis 2, preferably with its one, outermost end.
• the pivot rod 4 is preferably made in one piece and then preferably has a cylindrical, square or polygonal cross-section, z. B. in the form of a hexagon or octagon. Alternatively, a telescopic two-part design would be conceivable.
• the pivot rod is variable in length or the portion of the pivot rod 4, between the articulation of the pivot rod 4 to the main axis 2 and at the
• pivoting rod 4 is opposite the main axis 2
• Said pivoting rod 4 is preferably characterized in that its extension in the direction of her
• Pivoting the friction member 10 is identical to the pivot rod 4, by at least a factor of 6 is greater than its largest extension perpendicular to its longitudinal axis.
• Swivel bar 4 preferably one in turn rotatably held about the main axis bearing sleeve 5.
• the swivel bar 4 has this preferably a diameter or
• Threaded spring element in particular when it is designed as a helical spring.
• the first rod section 7 is preferably followed by a second rod section 8.
• the latter usually has a larger diameter or cross section.
• the spring element is supported on its one side preferably on the bearing sleeve and on its other side preferably at the transition between the first rod portion 7 and the second rod portion 8, possibly with the interposition of a spring plate, not shown in Fig. La.
• helical spring is structurally particularly favorable because of its simple and secure attachment by "threading.”
• other spring elements 6 are also theoretically conceivable, for example cup spring packets or even a plurality of helical springs.
• the friction body 10 may have a U-shaped configuration, wherein the U-legs for
• Swivel bar are open. The pivot rod then engages in the friction body.
• the friction body with a special
• friction fitting approximately in the form of a mineral, z. Asbestos-free, friction linings, as in the
• Automotive industry is used, or from a Bunt ⁇ or bearing metal.
• the rod portion 8 is conveniently provided with a slot 11 whose function will be explained in more detail shortly.
• the two frame elements 3 are connected to one another via a coupling element 12.
• the coupling element is preferably a cylindrical or square pin, which in the direction of his Longitudinal axis is at least ten times longer than in all other directions and the expediently so on the two
• Frame elements 3 fixed or riveted or screwed that its longitudinal axis 13 is parallel to the main axis 2.
• the coupling element 12 passes through the slot 11 (possibly with game), so that the mobility or the
• Coupling element 12 and in turn linked to the brake and / or safety gear frame elements 3 prevents the pivot rod 4 at any time occupies an unauthorized position -. B. by further from the position shown in FIG. 1 "down” falls or "down” pivots.
• the swivel bar 4 is thus coupled to the two frame elements 3 in such a way that they always perform a swiveling movement together, apart from the completely irrelevant, small inaccuracies which occur as a result of a certain play between the slot 11 and the
• Coupling element 12 may occur.
• the at least 3-layer "sandwich" of the frame members 3 and the pivot rod 4 thus forms a robust and well-defined pivoting mechanism.
• the magnet holder 14 carries a Electromagnet 15 (or more electromagnets, which is not mentioned again), the z. B. in Fig. 1 suggestively illustrated supply cable 16 is fed.
• the electromagnet 15 is capable of the swivel bar 4 against the tension of the spring element 6 in its shorter
• This position should be referred to as the ready position.
• the friction body 10 is held in this position at a distance from the brake bar 17, which may be a separate brake bar, while usually the already existing guide rail for the car and / or the
• Counterweight is used as a brake bar at the same time.
• Swivel bar 4 according to the invention has a large, consistently placed under the bias of the spring element
• electromagnet 15 does not act directly on the pivot rod, but via a lever construction which increases its holding force.
• a pull rod 18 is provided in the present case, which in turn is pivotally mounted about the main axis 2 at this. At its end facing away from the main axis 2 end, the pull rod 18 carries a bearing eye 19, via which a rocker lever 20 is pivotally hinged to her.
• the rocker lever 20 is simultaneously pivotable about the bearing eye 21 on the pivot rod 4 and at the
• the bearing eye 21 is closer, preferably 50% to 150% closer, positioned on the bearing eye 19 than at the point of articulation of the electromagnet 15.
• the articulation point of the electromagnet 15 not shown in detail here can also be a bearing eye, which is connected to a tab, which goes into the drawbar of the magnet. Instead, however, the rocker lever 20 can also carry a flat plate portion 26 which is attracted directly by the electromagnet 15, as in this
• the bearing eye 21 is positioned so that between the bearing eye 21 and the bearing eye 19 results in a lever arm which is shorter than that Lever arm between the point at which the resulting force of the electromagnet 15 acts on the rocker lever 20 and the bearing eye 21.
• Duplicate electromagnets such as to double, to triple or the like.
• Construction only a pull rod 18 and a rocker arm 20 are provided, which are then both disposed on one of the two sides of the rod portion 8. Constructions that are superior and therefore should work perfectly symmetrically, can instead with two tie rods 18 and two
• Rocker levers 20 may be provided which receive the rod portion 8 between them - about as will be explained in more detail later in the context of the second embodiment.
• auxiliary drive 1 The crucial functioning of the auxiliary drive 1 can be easily recognized by a closer inspection of the picture sequence offered by FIGS. 1, 3 and 4, when viewed in succession in this order.
• the electromagnet 15 is energized in the situation shown in FIG. Characterized the friction body 10 is held in its standby position by the rocker lever 20 is pulled by the electromagnet 15 toward the main axis 2. The rocker arm 20 thereby pivots about the bearing eye 19 and consequently pushes the
• Bearing eye 21 is introduced into the rocker arm 20.
• Friction body 10 is no longer able to hold in its ready position.
• the advantage of such a reversal is that in regular operation no continuous power
• Rod section 7 is pulled in a corresponding direction a little way through the bearing sleeve 5.
• Embodiment comes the friction body 10 in this way and Way with the brake bar 17 in frictional contact, since it comes as a result of the elongation of the pivot arm 4 against this to the plant.
• Swivel bar 4 is pressed against the action of the spring element 6 and is thereby transferred back from its longer state to its shorter state, because of the
• Rod section 8 again moves in the direction of the main axis 2 and Z. B. the rod portion 7 is pushed back in the opposite direction through the bearing sleeve 5.
• Electromagnet 15 introduces or preferably even against this completely abut.
• the electromagnet 15 is energized again. It is sufficient already a (low) energization of the electromagnet, the
• actuators 22, 23 are mounted on the frame member 3 or possibly directly on the pivoting rod 4 as well.
• Actuators are transmitted by the auxiliary drive 1 in the manner of the invention generated actuating forces on the brake or catch wedges or brake or catch rollers to the normally physically-physically completely separated and usually also housing-wise separated from the
• Brake device belong.
• the said separation has the great advantage that a modularization of the system is possible.
• the frame members 3 each have a pivotable actuator 22 is mounted or articulated. It is in the present case preferably a pull rod, cf. Fig. 5.
• the tie rod is hinged to the end of the respective frame member 3, the main axis of the second
• each of the pivotal actuators 22 is pulled up when the two frame members 3 perform their pivotal movement, here in a clockwise direction.
• About the tie rods is then pulled on the brake wedges or brake rollers of the elevator brake or elevator safety device. These come with the braking surfaces of the
• Performance of the auxiliary drive 1 can be performed.
• auxiliary drive 1 can therefore be carried out asymmetrically, for. B. in the sense that only a single auxiliary drive 1 is provided, the only with a single brake or guide rail
• Auxiliary drive 1 is that the auxiliary drive 1, at corresponding design, optionally can help to solve the elevator car or elevator brake device again, without a manual reset is required.
• the car for example, from the catch symbolizing position of FIG. 4 approached in the opposite direction under actuation of his drive, that is raised in the embodiment, is formed on the friction body 10, a downward force acting as a compressive force the actuators is transmitted, which thereby contribute to the brake wedges or brake rollers of the catch or
• a further pivotable actuating member 23 is attached to each of the frame members 3, preferably at the end facing away from the guide rail or brake bar 17. This further pivotable actuator is used, if necessary, on the opposite side
• FIGS. 7 to 13 show a second embodiment.
• This second embodiment does not differ in the mode of action and not in the basic manner of its relative movement of the first embodiment, but by the different type of support of the pivot rod 4 without additional pivotable frame members 3 and by a carriage 27, which functionally takes the place of the frame members 3.
• the second embodiment is preferably characterized in that always a pair of auxiliary drives 1 according to the invention is used together, usually so that the brake body of an auxiliary drive 1 interacts with a first active surface of the guide rail and the second auxiliary drive 1 with a second, this exactly opposite effective surface of the same guide rail.
• Construction would be the use of only a single drive conceivable, with a passive opposite side in the form of a
• Bearing roller or a sliding coating The entire construction could then optionally be mounted floating in the horizontal direction, so that even when using only one drive results in a uniform force effect.
• the auxiliary drive 1 according to the invention according to this second embodiment has a main axis 2. This is fixed preferably fixed to a carriage 27, which in turn is fixed relative to the car along rails 30 movable.
• the carriage 27 is preferably provided with a C-shaped bracket 28 which receives the second of the carriage 27 upstanding end of the main axis 2 and holds.
• the C-shaped bracket 28 is
• Part of the main axis 2 is also here preferably a bearing sleeve 5, projecting from both sides portions of the main axis 2.
• the bearing sleeve 5 can be seen well in FIG. 12.
• Bearing sleeve 5 preferably penetrated by a first, preferably cylindrical rod portion 7, which is held reciprocally displaceable in the bearing sleeve 5.
• the pivot rod 4 is also in this second
• Embodiment preferably carried out consisting of several sections.
• the pivot rod 4 in the above-described sense "length variable" and can be transferred from a longer state to a shorter state and vice versa.
• the said pivot rod 4 is preferably characterized in that its extension in the direction of its longitudinal axis LS, which is usually complete or at least essentially with the direct one
• Friction body 10 is identical to the pivot rod 4, by at least a factor of 5 is greater than its largest extension perpendicular to its longitudinal axis.
• the swivel rod can also be designed here as illustrated by the above-described FIG. 1a.
• the pivoting rod 4 is guided in the lateral direction essentially only by the bearing sleeve 5 via the main axis 2 formed below its engagement.
• This front stop 29 may also be designed in the manner of a C-shaped bracket, which is fastened to the carriage 27 in a manner comparable to the previously mentioned C-shaped bracket.
• the front stop 29 may optionally represent a lateral guide for the swivel bar 4 and / or a rear guide for the friction body 10 connected to the swivel bar 4 in the manner already described above
• Swivel bar 4 to provide the main axis 2 with an upper stop and thereby limit the pivoting movement in response. Such a stop then causes the
• Pivoting movement of the pivot rod is terminated at the moment of striking the pivot rod on the front stop 29 and thereby the frictional forces on the friction body 10 still arise as the carriage 27 move as a whole, in this embodiment, upwards. This will be discussed later.
• the front stop 19 in addition to the
• Magnet holder 14 is provided, which is usually fixed to the
• Swivel bar 4 is connected and therefore pivots back and forth together with this.
• the magnet holder 14 carries an electromagnet 15 or more electromagnets, as already mentioned above.
• the friction body 10 In its standby position, the friction body 10 is at a distance from the brake bar or the brake bar
• Embodiment but preferably so that the friction body 10 on one of the surfaces 25 of the used as a braking bar 17 Guideway comes to the plant, against which the actual brake wedges or brake rollers are brought to bear and rest against the rule also the guide rollers of the car or counterweight.
• the electromagnet does not act directly on the pivot rod, but via a lever construction that its
• Embodiment two parallel tie rods 18 are present, both of which in turn are pivotally mounted about the main axis 2 at this.
• the two tie rods 18 take the swivel bar 4 between them.
• Each of the two tie rods 18 is in turn connected to its own rocker lever 20.
• the rocker arms 20 are arranged so that they
• each of the two rocker lever 20 is pivotally mounted on the swivel bar 4 or on its second bar section 8 via a bearing eye 21, as described there.
• a bearing eye 21 for positioning of the bearing eye 21, the above also applies here.
• FIG. 7 shows a state in which the electromagnet 15 is energized.
• the friction body 10 is thereby spaced in its from the brake bar 17 and the guide rail
• Embodiment upward in the position shown in Fig. 10.
• the carriage thus moves relative to the car. This will be done with high precision over the
• Actuators 22 actuating forces on the only
• Transfer braking device which is triggered by it.
• Electromagnet 15 is introduced or applied to this.
• the air gap is thus reduced or eliminated in this way, over which the electromagnet must tighten the end of the rocker lever assigned to it.
• the type with the pivot rod 4, which propagate the first and the second embodiment, is particularly concerned
• Figures 14 and 15 roughly illustrate that the friction body 10 z. B. can be equipped with lateral guide rails F, with which he in slots S of the principle according to the first embodiment corresponding frame elements. 3
• Fig. 14 shows that two spring elements 6 may be present and two electromagnets 15. Let them the friction body 10 going on, then he is pressed by the spring elements in Fig. 14 to the left to the brake bar, not shown here.
• Such simplified drives also in pairs in an otherwise the second embodiment
• Response position can be brought to the swivel body and vice versa, wherein the at least one electromagnet in its first switching state, the friction body in his
• Swivel body, the main axis and the brake bar are arranged relative to each other so that the friction body the
• Frictional forces such around the main axis closer zoom closer to the brake bar, that the friction body of the

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• Cage And Drive Apparatuses For Elevators (AREA)

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• 2017
  • 2017-06-14 DE DE202017103555.7U patent/DE202017103555U1/de active Active
• 2018
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  • 2018-06-14 RU RU2020100117A patent/RU2759771C2/ru active
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